\newproblem{lay:1_3_1}{
   % Problem identification
	 \begin{large}
     \textbf{Lay, 1.3.1}
	 \end{large}
	 \\
   \ifthenelse{\boolean{identifyAuthor}}{\textit{Carlos Oscar Sorzano, Aug. 31st, 2013} \\}{}

   % Problem statement
   Compute $\mathbf{u}+\mathbf{v}$ with $\mathbf{u}=\begin{pmatrix}-1 \\ 2\end{pmatrix}$ and $\mathbf{v}=\begin{pmatrix}-3 \\ -1\end{pmatrix}$
}{
   % Solution
	\begin{center}
		$\mathbf{u}+\mathbf{v}=\begin{pmatrix}-1 \\ 2\end{pmatrix}+\begin{pmatrix}-3 \\ -1\end{pmatrix}=\begin{pmatrix}-4 \\ 1\end{pmatrix}$
	\end{center}
}
\ifthenelse{\boolean{eachProblemInOnePage}}{\newpage}{}
\useproblem{lay:1_3_1}
